create table tab_doc (DOC_ID varchar(36),
                           DATE_CREATE date,
                           TYPE_DOC varchar(3) );
create table tab_doc_text (DOC_ID varchar(36),
                           DOC_TXT clob );
SQL> INSERT ALL
  2      INTO tab_doc  
  3             values (DOCUM_ID,DDATE,'NEW')
  4     INTO tab_doc_text values ( DOCUM_ID, CLOB_txt)
  5       select sys_guid()  DOCUM_ID,sysdate ddate, 'text'||level CLOB_txt 
  6       from dual connect by level<4;

6 rows created.

SQL> 
SQL>  select  * from tab_doc;

DOC_ID                               DATE_CREA TYP
------------------------------------ --------- ---
C5FE8A2296B237B8E053C402A8C09059     30-JUN-21 NEW
C5FE8A2296B337B8E053C402A8C09059     30-JUN-21 NEW
C5FE8A2296B437B8E053C402A8C09059     30-JUN-21 NEW

SQL>   select  * from tab_doc_text;     

DOC_ID                               DOC_TXT
------------------------------------ -----------------------------------------------------
C5FE8A2296B237B8E053C402A8C09059     text1
C5FE8A2296B337B8E053C402A8C09059     text2
C5FE8A2296B437B8E053C402A8C09059     text3

SQL> INSERT ALL
  2      INTO tab_doc  
  3             values (DOCUM_ID,DDATE,TYPE_D)
  4     INTO tab_doc_text values ( DOCUM_ID, CLOB_TXT)
  5       select sys_guid()  DOCUM_ID,DDATE, CLOB_TXT,TYPE_D 
  6        from (select xmltype('<?xml version="1.0" encoding="UTF-8"?>
  7  <ROWSET>
  8   <ROW>
  9     <DATE_CREATE>2021-06-25</DATE_CREATE>
 10     <TYPE_DOC>NEW</TYPE_DOC>
 11     <DOC_TXT>text1</DOC_TXT>
 12   </ROW>
 13   <ROW>
 14     <DATE_CREATE>2021-06-26</DATE_CREATE>
 15     <TYPE_DOC>NEW</TYPE_DOC>
 16     <DOC_TXT>text2</DOC_TXT>
 17   </ROW>
 18    <ROW>
 19     <DATE_CREATE>2021-06-30</DATE_CREATE>
 20     <TYPE_DOC>OLD</TYPE_DOC>
 21     <DOC_TXT>text3</DOC_TXT>
 22   </ROW>
 23  </ROWSET>') xml_file from dual) tt,xmltable ('/ROWSET/ROW' 
 24           PASSING tt.xml_file COLUMNS                    
 25           DDATE date PATH 'DATE_CREATE' ,
 26           TYPE_D      varchar(3) PATH 'TYPE_DOC',
 27           CLOB_TXT clob PATH  'DOC_TXT') ;

6 rows created.

SQL> select  * from tab_doc;

DOC_ID                               DATE_CREA TYP
------------------------------------ --------- ---
C5FE8A2296B237B8E053C402A8C09059     30-JUN-21 NEW
C5FE8A2296B337B8E053C402A8C09059     30-JUN-21 NEW
C5FE8A2296B437B8E053C402A8C09059     30-JUN-21 NEW
C5FE8A2296B537B8E053C402A8C09059     25-JUN-21 NEW
C5FE8A2296B737B8E053C402A8C09059     26-JUN-21 NEW
C5FE8A2296B937B8E053C402A8C09059     30-JUN-21 OLD

6 rows selected.

SQL>  select  * from tab_doc_text;

DOC_ID                               DOC_TXT
------------------------------------ -----------------------------------------------------
C5FE8A2296B237B8E053C402A8C09059     text1
C5FE8A2296B337B8E053C402A8C09059     text2
C5FE8A2296B437B8E053C402A8C09059     text3
C5FE8A2296B637B8E053C402A8C09059     text1
C5FE8A2296B837B8E053C402A8C09059     text2
C5FE8A2296BA37B8E053C402A8C09059     text3

6 rows selected.